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      09-09-2012, 09:14 PM   #4
snoozee
Second Lieutenant
 
Drives: 318i
Join Date: Mar 2012
Location: Singapore

Posts: 213
iTrader: (0)

you'll need to remove the bracket holding the module under the trunk carpet to check on what it is. TCU is usually mounted on top of the bracket and MULF underneath the bracket but this is not a surefire way to ID the module. It's best to remove the 2 bolts holding the bracket in place and check the markings on the module.

Since you do not have USB but have bluetooth, most probably you have a TCU, especially if you have BMW SOS assist as well. TCU provides bluetooth functionalities as well.
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